Method of ornamenting glass.



918,798. Patented Apr. 2o, 1909.A

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JOHN TULLY, OF CHICAGO, ILLINOIS.

METHOD OF ORNALIENTIN'G GLASS.

Specification of Letters Patent.

Patented April 20, 1909.

Application led April 6, 1908. Serial No. 425,357.

1'0 'all whom it may concern:

Be it known that I, JOI-1N TULLY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Method of Ornamenting Glass, of which the following is a specification.

My invention relates to an improvement in the lart of ornamenting glass by applying 'i which are thereby caused to different colors to a surface thereof aliording the back, to produce for presentation to view on the opposite surface, variegated ornamental eects, in imitation of marble, onyx and other attractive surfaces.

The primary object of my invention is to provide a novel method of ornamentation by the practice thus generally referred to Whereby the blending of the colors 'shall be rendered peculiarly effective; and to this end my improved procedure is the following:

he various desired colors bei selected, which are preferably paints of thlgbest quality, each color in suitable quantity-that chosen to predominate being 1n the greatest proportion and the other or others in lesser prcprtion-is mixed With a suitable binding an stiffening agent. Glue, varnish, a soluble silicate (preferably silicate of sodium) or the like may be used for the purposein suitable quantity to render the mixture of a paste-like consistency, ranging in stiffness from that of thick molasses to the stiffness..

of moist putty. The several masses of these stiifened colors are then mixed together and Worked, but only to a more or less slight extent, to inci iently or partly blend them, whereupon t e mixture is applied as With a spatula to, and spreadupon the surface of t e glass to be ornamented, the spreading operation serving to further work themixture and complete the blending of the colors, lpresent little, if any, variegation on the bac i surface but a 'gh degree of attractively blended variegation through the opposite surface. The glass is then left or exposed to a drying influence to dry andfix the s read mass upon the surface of the glass to w ich it is applied.

A sheet or plate of glass which has been a front elevation, and Fig. 2 a cross-section of the same.

The glass 3 is of any suitable variety and quality7 and may be in any desired shape adapting it to be operated upon in the manner described to cover the obverse surface thereof With the coatin 4 com osed of the mixture of different stiflened co ors.

The gist of my invention consists in the successive blending treatments to Which the mixture of preparatorily stiifened colors is subjected, since thereby its primary advan- ,tage is attained of enhancing to an extraordinary degree-the blending of the colors and producing a high character of attractive ornamentation.

Where, as suggested, a silicate is used as thecolor-stiffening agent it is desirable to plroduce the drying by baking under a high egree of heat, say about 500 F., more or less, to intimately and firmly unite it with the surface of the glass and render the coating resistant to moisture, thereby augmenting its endurance when exposed to the elements, as when the article is employed for ex osure out of doors.

hat I claim as new vand desire to secure by Letters Patent is- 1. The herein-described method of ornamenting'glass, which consists in mixing each of a plurality of different colors se arately with a stiffening agent, mixing toget er said stiiened colors 'to produce a partial blending thereof, spreading this mixture upon a surface of'the glass to be ornamented and thereby further blending the colors, and drying the blended' mixture on said surface.

2. The herein-described method of ornamenting glass, which consists in mixing each of a plurality of different colors separately with a stiffening agent and thereby forming a mixture of paste-like consistency, mixing together-said stiffened colors to produce a partial blending thereof, spreading this mixture u on a surface of the glass to be ornamenteg and thereby completing the blending ofthe colors, and drying the blended mixture ing thereof, spreading this mixture upon a on said surface. surface of the glass to be ornamented and l0 3. The herein-described method of ornathereby further blending' the colors, and

inenting glass, which consists in mixing each baking the blended mixture on said surface.

of a plurality of different colors separately JOHN TULLY. with a suitable silicate, as sodium sillcate, to 4In presence ofproduce a, stii mixture, mixing together the A. U. THORIEN,

colors so stiffened to produce a partial blend- R. A. SGHAEFER. 

